Feed-water heater



(No Model.)

lH. G. KBASBEY.

FEED WATER HEATER.

No. 543,689. Patented July 30, 1895.

ATTORNEY.

WITN ESS ES:

UNITED STATES ATnNT erica.,

HENRY G. KEASBEY, OF AYMBLER, PENNSYLVANIA. I

FEED-.WATER HEATIER.

SPECIFICATION forming part of Letters Patent No. 543,689, dated July 30,1895.

Appiano). had 'April 17, 1895.

lb a/ZZ whom, it may concern:

Be it known that l, HENRY G. KEASBEY, a citizen of the United States,residing at Ambler, in the county of Montgomery, State of Pennsylvania,have invented a new and useful Improvement in Feed-Water Heaters,Economizers, nc., which improvement is fully set forth in the followingspecification and accompanying drawing. Y

My invention relates toa novel construction of feed-water heater; and itconsists of a plurality of separable sections or chambers, which arereadily assembled together and adapted to be placed in an uprightposition in a smoke-stack, or adjacent to a boiler or furnace, the hotgases and products of combustion which have been first utilized in theboiler forming the only heating medium for said heater, and the watercontained therein being effectively heated by being conductedsuccessively from that portion of the heater where the temperature islowest to the hottest portion thereof, and being eventually conductedtherefrom to a boiler or other point, provision being made for obtainingready access to the interior of the chambers and dues, all as will behereinafter set forth.

The figure represents a vertical sectional view of a feed-water heaterembodying my invention.

Referring to the drawing, A designates the feed-water heater, which iscomposed Aof the hollow chambers B, C, D, and E, which are superimposedupon each other, and in the present instance are fourinnumber, althoughit is evident that the `number of these chambers may be increased ordiminished according to requirements. f

As the above chambers are all substantially alike, a description of onewill suce for all, reference being had to the upper chamber E. The saidchamber is composed of a cylindrical or other shaped shell F, to eachend of which is suitably attached the tube-sheets G and H, in which areexpanded or otherwise secured the dues J, Each chamber has attached toits shell, at a point near the junetion ofl thelatter and the tube-sheets, suitable ears, lugs or angle-irons K, whose abutting portionsare held together by bolts or similar devices when the chambers areassembled and placed in `iuxtaposition to each other.

Serial No. 546,150. (No model) It will be obvious that other means thanthose shown may be used for holding the chambers in position-e. g., arod or bolt L extending through each section may be employed, the endsthereof being engaged by nuts, keys, or other devices.

M designates the inlet for the feed-water, which is located at the lowerportion of the upper chamber, near the lower tube-sheet of the same.

N designates the outlet-pipe connecting the two upper chambers, and itwill be noticed that said pipe has'one end connected to the upperportion of said upper chamber, while its other end is connected to thelower portion of the adjacent chamber D. In like manner the upperportion of the chamber D is con` nected by the pipe P to the lowerportion of the chamber C, and the upper portion of the latter isconnected by the pipe'Q with the lower portion of the chamber B, whilethe hot water is conducted by the pipe R from the upper portion of thechamber B to a boiler or elsewhere. Each of the chambers B, C, D, and Eis provided with a blow-off pipe S, which is attached to the lowerportion thereof, where the movement of the water is the least, andconsequently the largest amount of sediment will be deposited. Theseveral chambers may be further provided with manholes T, andsafety-valves may also be provided if desired.

Udesignates a hood or casing which is attached to the upper chamber E,into which the hot gases and products of combustion are discharged afterhaving first imparted their heat to the contents of the chambers below,

v said gases eventually escaping from the hood through the outlet V.

W designates an inletliue for thehot gases and products of combustion,the latter being conducted thereinto after they have been first utilizedin a boiler. The said hood U may be provided with a door or doors X,which admit of access of the smoke-lines J, for the purpose of removingashes, soot, &c., therefrom Whenever desired, it being remembered thatall the dues J are in substantial alignment with each other.

The operation is as follows: The several chambers having been assembledin the manner shown, it being noticed that the pipes N IOO and Q arepreferably diametrically opposite to each other, in order that the watermay be obliged to traverse as much of the heating surface as possiblewhile passing through cach chamber, the feed-water, having beenintroduced through the pipe M, rises as it becomes heated in its contactwith the hot surfaces and is conducted by the pipe N to the lowerportion of the chamber D, thencemfrom the upper portion of the latter bythe pipe P to the lower portion of the chamber C, and thence to thechamber B, and, finally, by means of the outlet pipe R, to the boiler orother desired point, it being noticed that since said water enters theheater at the point where the temperature is lowest and is dischargedtherefrom at the point where the temperature is highest the heating willbe `gradual and effective and only the hottest water will be withdrawntherefrom.

By making the parts in sections, as shown, the heater can be readilytaken apart for transportation,and in case of accident to one ofthesections or chambers the same can be readily removed and repaired or anew one inserted in position, as is evident.

Each chamber can be readily blown off and access had to the interior bymeans of the manholes.

The heater may be placed in a smoke-stack or may be placed in an uprightposition at the rear of a boiler or furnace.

I am aware that it is not broadly new to construct a feed-water heaterin sections or to provide the same with Water-circulating pipes locatedexteriorly thereto, and to such construction I herein make no claim, the

present invention being in the nature of an improvement on mypriorpatent,No. 525,553, granted September 4, 1894, and being designedto cover the specific structure ot a feedwater heater which is basedupon the general construction shown in said patent and to show andprotect the best manner of assembling and operating said feed-waterheater.

I-Iaving thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

A feed water heater, consisting of a plurality of separable sections,provided with tire tubes, superimposed upon each other, means forsecuring said sections in position, connections between said sectionsextending from the upper portion of one section to the lower portion ofthe adjacent section, and from the upper portion of the latter to thelower portion of the next section, the feed water inlet being in thelower portion of the upper chamber, and the hot water outlet leadingfrom the upper portion of the lowest chamber, in combination withasuitable inlet for the products of combustion attached to said lowersection, and a hood or casing having an outlet therefrom, attached tothe npper section, whereby the water is rapidly and effectively heated,being introduced in the coolest portion of the heater and dischargedfrom the hottest portion thereof, substantially as described.

HENRY G. KEASBEY.

Witnesses:

AUGE CLERICY, FRANCOIS LoNA.

